The neuroprotective effects of alpha lipoic acid in rotenone-induced Parkinson's disease in mice via activating PI3K/AKT pathway and antagonizing related inflammatory cascades.

Autor: Fahmy MI; Pharmacology and Toxicology Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt. Electronic address: mohamed.aljawaly@must.edu.eg., Khalaf SS; Biochemistry Department, Faculty of Pharmacy, Heliopolis University, 11785, Cairo, Egypt., Elrayess RA; Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt.
Jazyk: angličtina
Zdroj: European journal of pharmacology [Eur J Pharmacol] 2024 Oct 05; Vol. 980, pp. 176878. Date of Electronic Publication: 2024 Aug 08.
DOI: 10.1016/j.ejphar.2024.176878
Abstrakt: Parkinson's disease (PD) is an idiopathic disease caused by the loss or degeneration of the dopaminergic (dopamine-producing) neurons in the brain and characterized by various inflammatory and apoptotic responses in the neuronal cells. Phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) axis is responsible for neuronal survival by providing a number of anti-inflammatory and anti-apoptotic milieu that prevent the progression of PD. Alpha-lipoic acid (ALA) is a natural cofactor that has antioxidant capacity and contributes to various metabolic processes. ALA can penetrate the blood-brain barrier and contribute to numerous neuroprotective effects. It can activate PI3K/AKT pathway with consequent reduction of different inflammatory and oxidative biomarkers. Our work aims to unfold the neuroprotective effects of ALA via targeting PI3k/AKT pathway. Forty male mice were divided into four groups: control, ALA (100 mg/kg/day; i.p.), rotenone (ROT) (1.5 mg/kg/2 days, i.p.) and rotenone + ALA for 21 days. ALA showed obvious neuroprotective effects via significant activation of PI3K/AKT pathway with subsequent decreasing level of Caspase-3. ALA resulted in prominent anti-inflammatory actions by decreasing interlukin-1β (IL-1β), tumor necrosis factor (TNF)-α and nuclear factor kabba (NFk)-B. ALA remarkably induced antioxidant activities via increasing reduced glutathione (GSH) and superoxide dismutase (SOD) levels as well as decreasing malondialdehyde (MDA) level. The substantial behavioral improvement reflected in these results was noticed in the ALA-treated mice as a reflection of the neuroprotective activities of ALA. In conclusion, ALA showed promising neuroprotective effects in rotenone-induced PD via activating the PI3K/AKT pathway and consequent inhibition of apoptotic and inflammatory biomarkers.
Competing Interests: Declaration of competing interest none.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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